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An Integrated Controller Optimizing Energy Consumption and Signal Timing Through V2I and V2V Communications Was Predicted To Improve Energy Efficiency by Up to 18 Percent and Reduce Total Delay Up to 47 Percent Based on Simulation Results.

METHODOLOGY This proposed controller was first tested at an isolated signalized intersection to validate its performance and then on an arterial road in downtown Blacksburg with multiple traffic…
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Date Posted
03/28/2023

Study Estimates Delivery Drones Could Avoid up to 294 Million Miles Per Year in Road Use and 114K Tons Per Year in CO2 Emissions for a Single US Metropolitan Area.

The team built models for each city, drawing on data on consumer habits and business performance and dozens of interviews with business owners and government officials. The models projected consumer…
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Date Posted
01/26/2021

Connected-Vehicle-enabled Transit Signal Priority algorithm results in reduced delays of up to 75 percent

Findings: The TSP based on CV technology (TSPCV) logic was capable of providing a green light for the transit vehicle 100 percent of the time. Though both conventional and differential GPS devices…
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Date Posted
09/28/2018

Prototype Crash Warning Interface displays for Connected Vehicle-based motorcycle Crash Warning System show considerable promise for implementation.

Content references source material no longer available at its original location.
Methodology Four prototype warning interface displays covering three warning mode alternatives (auditory, visual and haptic) were designed and developed for the motorcycles. The warnings were also…
Content type
Date Posted
02/17/2017
Taxonomy (ARC-IT) Mayday Notification (PS04)

In-vehicle adaptive stop display results in more compliant behavior compared to the traditional stop sign.

For the test track experiment, the in-vehicle adaptive display system utilized a five-inch LCD monitor, positioned so it was slightly offset from the vehicle’s steering wheel and plugged in the…
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Date Posted
12/06/2016

Fuel optimization framework has ability to reduce fuel use in the vicinity of signalized intersections by up to 32 percent.

Methodology The effectiveness of the cruise control system was tested by running 2100 agent-based simulations in a MATLAB environment. The combination of controller-agents, ECACC-agents and driver-…
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Date Posted
10/31/2016

Eco-speed control applications for connected vehicles can reduce fuel consumption 30 percent at urban intersections.

FINDINGSThe following conclusions were derived from 38 simulation runs:Eco-speed control is able to reduce the overall fuel consumption of vehicles by approximately 30 percent in the vicinity of…
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Date Posted
02/23/2015

91 percent of volunteer drivers that tested V2V communications safety features indicated they would like to have these technologies on their personal vehicle.

METHODOLOGY After participants were exposed to each functional application, the experimenter asked a series of questions to capture data on immediate impressions, safety application effectiveness,…
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Date Posted
08/24/2012